Structural evolution of the transition zone between the Aconcagua and Malargûe fold and thrust belts, province of Mendoza

In this work we describe briefly the stratigraphy and the structure of the Andes in the transition zone between the Aconcagua and Malargüe fold and thrust belts. The outcrops are a Permotriasic volcanic acid basement, Mesozoic sediments of the Cuenca Neuquina and Neogene volcanic rocks and continent...

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Autores principales:	Broens, S., Pereira, D.M.
Formato:	JOUR
Materias:	Andes Cuenca neuquina Mendoza Río diamante Structure anticline cordillera deformation fold and thrust belt imbrication inversion tectonics lineament Neogene outcrop structural geology transfer zone transition zone Triassic uplift volcanic rock Argentina Diamante River South America
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00044822_v60_n4_p685_Broens
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00044822_v60_n4_p685_Broens
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spelling	todo:paper_00044822_v60_n4_p685_Broens2023-10-03T13:58:09Z Structural evolution of the transition zone between the Aconcagua and Malargûe fold and thrust belts, province of Mendoza Broens, S. Pereira, D.M. Andes Cuenca neuquina Mendoza Río diamante Structure anticline cordillera deformation fold and thrust belt imbrication inversion tectonics lineament Neogene outcrop structural geology transfer zone transition zone Triassic uplift volcanic rock Andes Argentina Diamante River Mendoza South America In this work we describe briefly the stratigraphy and the structure of the Andes in the transition zone between the Aconcagua and Malargüe fold and thrust belts. The outcrops are a Permotriasic volcanic acid basement, Mesozoic sediments of the Cuenca Neuquina and Neogene volcanic rocks and continental deposits. Structuraly we distinguish from west to east four segments: a tectonic inversion zone, a tight folds zone, a central or imbrication zone, and the Carrizalito anticlinal. Two structural sections were built using field data collected from the thight folds and imbrication zones and the from western flank of the Carrizalito anticlinal, that describe the structures in the area. Regional lineaments with northwest trends, could be acting as transfer zones. It can be recognize two or three deformational pulses according to the relative ages between the structures and the uplift of the Cordillera Frontal. If the cordon del Carrizalito was a basement high we propose two deformational pulses, the first one of thin skinned type and the second one responsible of the uplift of the Frontal Cordillera, tilting the previously deformed sequence. If the uplift of the Carrizalito anticlinal worked as a sticking point of the fold and thrust belt, a third deformational episode with out-of-sequence faults could be recognized. © 2005 Asociación Geológica Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v60_n4_p685_Broens
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Andes Cuenca neuquina Mendoza Río diamante Structure anticline cordillera deformation fold and thrust belt imbrication inversion tectonics lineament Neogene outcrop structural geology transfer zone transition zone Triassic uplift volcanic rock Andes Argentina Diamante River Mendoza South America
spellingShingle	Andes Cuenca neuquina Mendoza Río diamante Structure anticline cordillera deformation fold and thrust belt imbrication inversion tectonics lineament Neogene outcrop structural geology transfer zone transition zone Triassic uplift volcanic rock Andes Argentina Diamante River Mendoza South America Broens, S. Pereira, D.M. Structural evolution of the transition zone between the Aconcagua and Malargûe fold and thrust belts, province of Mendoza
topic_facet	Andes Cuenca neuquina Mendoza Río diamante Structure anticline cordillera deformation fold and thrust belt imbrication inversion tectonics lineament Neogene outcrop structural geology transfer zone transition zone Triassic uplift volcanic rock Andes Argentina Diamante River Mendoza South America
description	In this work we describe briefly the stratigraphy and the structure of the Andes in the transition zone between the Aconcagua and Malargüe fold and thrust belts. The outcrops are a Permotriasic volcanic acid basement, Mesozoic sediments of the Cuenca Neuquina and Neogene volcanic rocks and continental deposits. Structuraly we distinguish from west to east four segments: a tectonic inversion zone, a tight folds zone, a central or imbrication zone, and the Carrizalito anticlinal. Two structural sections were built using field data collected from the thight folds and imbrication zones and the from western flank of the Carrizalito anticlinal, that describe the structures in the area. Regional lineaments with northwest trends, could be acting as transfer zones. It can be recognize two or three deformational pulses according to the relative ages between the structures and the uplift of the Cordillera Frontal. If the cordon del Carrizalito was a basement high we propose two deformational pulses, the first one of thin skinned type and the second one responsible of the uplift of the Frontal Cordillera, tilting the previously deformed sequence. If the uplift of the Carrizalito anticlinal worked as a sticking point of the fold and thrust belt, a third deformational episode with out-of-sequence faults could be recognized. © 2005 Asociación Geológica Argentina.
format	JOUR
author	Broens, S. Pereira, D.M.
author_facet	Broens, S. Pereira, D.M.
author_sort	Broens, S.
title	Structural evolution of the transition zone between the Aconcagua and Malargûe fold and thrust belts, province of Mendoza
title_short	Structural evolution of the transition zone between the Aconcagua and Malargûe fold and thrust belts, province of Mendoza
title_full	Structural evolution of the transition zone between the Aconcagua and Malargûe fold and thrust belts, province of Mendoza
title_fullStr	Structural evolution of the transition zone between the Aconcagua and Malargûe fold and thrust belts, province of Mendoza
title_full_unstemmed	Structural evolution of the transition zone between the Aconcagua and Malargûe fold and thrust belts, province of Mendoza
title_sort	structural evolution of the transition zone between the aconcagua and malargûe fold and thrust belts, province of mendoza
url	http://hdl.handle.net/20.500.12110/paper_00044822_v60_n4_p685_Broens
work_keys_str_mv	AT broenss structuralevolutionofthetransitionzonebetweentheaconcaguaandmalarguefoldandthrustbeltsprovinceofmendoza AT pereiradm structuralevolutionofthetransitionzonebetweentheaconcaguaandmalarguefoldandthrustbeltsprovinceofmendoza
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Structural evolution of the transition zone between the Aconcagua and Malargûe fold and thrust belts, province of Mendoza

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